Service Areas

On The Mark Heating and Air is based in Streamwood, IL, and serves residential and commercial customers throughout the area. Contact us today for your heating and cooling needs! 

We are proud to offer service in and around the following communities:

Elk Grove Village
Hoffman Estates
Streamwood
Bartlett
Elgin
Schaumburg
Streamwood
Arlington Heights
Addison
Barrington
Bloomingdale
Carol Stream
Deer Park
East Dundee
Hanover Park
Inverness
Itasca
Lake Barrington
Medinah
Palatine
Lake Zurich
Keeneyville
Rolling Meadows
South Barrington
West Dundee
Wheaton
Roselle